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marysya [2.9K]
2 years ago
7

Please help ASAP 40 points!!

Mathematics
1 answer:
Nonamiya [84]2 years ago
4 0

Answer:

b) -5^x + 3x - 2

Step-by-step explanation:

(f-g) = -5^x - 4 - (-3x - 2) = -5^x - 4 + 3x + 2 = -5^x +3x - 2

therefore, the answer is b) -5^x + 3x - 2

hope this helps! <3

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Step-by-step explanation:

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3 years ago
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Dimas [21]
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dy/dx = x + 2xlnx

now taking second derivative:
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How to solve logarithmic equations as such
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\bf \log_2(x-1)=\log_8(x^3-2x^2-2x+5) \\\\\\ \log_2(x-1)=\log_{2^3}(x^3-2x^2-2x+5) \\\\\\ \log_{2^3}(x^3-2x^2-2x+5)=\log_2(x-1) \\\\\\ \stackrel{\textit{writing this in exponential notation}}{(2^3)^{\log_2(x-1)}=x^3-2x^2-2x+5}\implies (2)^{3\log_2(x-1)}=x^3-2x^2-2x+5

\bf (2)^{\log_2[(x-1)^3]}=x^3-2x^2-2x+5\implies \stackrel{\textit{using the cancellation rule}}{(x-1)^3=x^3-2x^2-2x+5} \\\\\\ \stackrel{\textit{expanding the left-side}}{x^3-3x^2+3x-1}=x^3-2x^2-2x+5\implies 0=x^2-5x+6 \\\\\\ 0=(x-3)(x-2)\implies x= \begin{cases} 3\\ 2 \end{cases}

5 0
3 years ago
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Marianna [84]

Answer:

a7/5

Step-by-step explanation:

3 0
3 years ago
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